Section 3 Interoperability Profile For 620 Series Iec 60870-5-103; Physical Layer; Electrical Interface; Optical Interface - ABB 620 Series Manual

1MRS757657 A
Section 3
3.1
3.1.1
3.1.2
3.1.3
3.2
REM620
Point List Manual
Interoperability profile for 620 series IEC 60870-5-103
Interoperability profile for 620 series IEC
60870-5-103

Physical layer

Electrical interface

⊠ EIA RS-485
⃞ Number of loads ........................ for one protection equipment
NOTE - EIA RS-485 standard defines unit loads so that 32 of them can be operated on one line.
For detailed information refer to clause 3 of EIA RS-485 standard.

Optical interface

⊠ Glass fibre
⃞ Plastic fibre
⃞ F-SMA type connector
⃞ BFOC/2,5 type connector

Transmission speed

⊠ 9 600 bit/s
⊠ 19 200 bit/s

Link layer

There are no choices for the link layer.
Section 3
55